Commit e10aeee1 authored by Kurt Roeckx's avatar Kurt Roeckx
Browse files

fuzzers: print and convert it back 



Reviewed-by: default avatarRich Salz <rsalz@openssl.org>
GH: #1323
parent 5e3553c2

fuzz/asn1.c

+23 −1
Original line number Diff line number Diff line
@@ -69,11 +69,33 @@ int FuzzerInitialize(int *argc, char ***argv) { 
int FuzzerTestOneInput(const uint8_t *buf, size_t len) {

    int n;



    ASN1_PCTX *pctx = ASN1_PCTX_new();



    ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT |

        ASN1_PCTX_FLAGS_SHOW_SEQUENCE | ASN1_PCTX_FLAGS_SHOW_SSOF |

        ASN1_PCTX_FLAGS_SHOW_TYPE | ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME);

    ASN1_PCTX_set_str_flags(pctx, ASN1_STRFLGS_UTF8_CONVERT |

        ASN1_STRFLGS_SHOW_TYPE | ASN1_STRFLGS_DUMP_ALL);



    for (n = 0; item_type[n] != NULL; ++n) {

        const uint8_t *b = buf;

        unsigned char *der = NULL;

        const ASN1_ITEM *i = ASN1_ITEM_ptr(item_type[n]);

        ASN1_VALUE *o = ASN1_item_d2i(NULL, &b, len, i);



        if (o != NULL) {

            BIO *bio = BIO_new(BIO_s_null());

            ASN1_item_print(bio, o, 4, i, pctx);

            BIO_free(bio);



            ASN1_item_i2d(o, &der, i);

            OPENSSL_free(der);



            ASN1_item_free(o, i);

        }

    }



    ASN1_PCTX_free(pctx);



    return 0;

}

fuzz/ct.c

+11 −1
Original line number Diff line number Diff line
@@ -22,7 +22,17 @@ int FuzzerInitialize(int *argc, char ***argv) { 


int FuzzerTestOneInput(const uint8_t *buf, size_t len) {

    const uint8_t **pp = &buf;

    unsigned char *der = NULL;

    STACK_OF(SCT) *scts = d2i_SCT_LIST(NULL, pp, len);

    if (scts != NULL) {

        BIO *bio = BIO_new(BIO_s_null());

        SCT_LIST_print(scts, bio, 4, "\n", NULL);

        BIO_free(bio);



        i2d_SCT_LIST(scts, &der);

        OPENSSL_free(der);



        SCT_LIST_free(scts);

    }

    return 0;

}